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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A201233 Number of nX6 0..3 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

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%I A201233 #6 Jul 22 2025 16:10:30
%S A201233 40,152,18056,66027,8499558,33222962,4442977704,17052604235,
%T A201233 2254057282528,8454420786242
%N A201233 Number of nX6 0..3 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.
%C A201233 Column 6 of A201235
%e A201233 Some solutions for n=4
%e A201233 ..0..0..0..1..1..1....0..0..1..1..2..2....0..0..1..1..1..1....0..0..0..0..0..1
%e A201233 ..0..0..2..1..3..3....0..0..1..1..3..2....0..0..3..1..3..2....0..1..1..3..3..2
%e A201233 ..0..3..2..2..2..2....0..1..1..3..3..2....0..0..2..1..3..2....1..1..2..3..2..3
%e A201233 ..1..1..3..3..2..3....0..2..3..2..3..3....2..2..2..3..3..3....1..2..2..2..3..3
%K A201233 nonn
%O A201233 1,1
%A A201233 _R. H. Hardin_ Nov 28 2011

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